                          :artist/sortName "Ferré, Léo",
                          :artist/endMonth 7}],
                        :track/artistCredit "Léo Ferré",
-                       :track/position 9,                    
+                       :track/position 9,
                        :track/name "Je te donne ces vers",
                        :track/duration 78133}
                       {:track/artists

                     :label/gid (ext {:db/unique :db.unique/identity
                                      :db/index true}
                                     :db.type/uuid)
                     
                     ;; The name of the record label
                     :label/name (ext {:db/fulltext true
                                       :db/index true}
                                      :db.type/string)
                     
                     ;; The name of the record label for use in alphabetical sorting
                     :label/sortName (ext {:db/index true}
                                          :db.type/string)
                      
                     :label/type #{:label.type/distributor
                                   :label.type/holding
                                   :label.type/production

                                                                   :artist/gid (ext {:db/unique :db.unique/identity
                                                                                     :db/index true}
                                                                                    :db.type/uuid)

                                                                   ;; The artist's name
                                                                   :artist/name (ext {:db/fulltext true
                                                                                      :db/index true}
                                                                                     :db.type/string)

                                                                   ;; The artist's name for use in alphabetical sorting, e.g. Beatles, The
                                                                   :artist/sortName (ext {:db/index true}
                                                                                         :db.type/string)

                                                                   ;; The mbrainz-sample says "The artist's name for use in sorting,
                                                                   ;; e.g. Beatles, The"
                                                                   ;; (https://github.com/Datomic/mbrainz-sample/blob/master/schema.edn#L66)
                                                                   ;; but that's most likely a typo, and it must be an enum.
                                                                   ;; Issue opened: https://github.com/Datomic/mbrainz-sample/issues/3
                                                                   :artist/type #{:artist.type/person :artist.type/group :artist.type/other}

                                                                   :artist/gender #{:artist.gender/male
                                                                                    :artist.gender/female
                                                                                    :artist.gender/other}

                                                                   ;; The artist's country of origin
                                                                   :artist/country :db.type/ref ; country entity, see above

                                                                   ;; The year the artist started actively recording
                                                                   :artist/startYear (ext {:db/index true}
                                                                                          :db.type/long)

                                                                   ;; The month the artist started actively recording
                                                                   :artist/startMonth :db.type/long

                                                                   ;; The day the artist started actively recording
                                                                   :artist/startDay :db.type/long

                                                                   ;; The year the artist stopped actively recording
                                                                   :artist/endYear :db.type/long

                                                                   ;; The month the artist stopped actively recording
                                                                   :artist/endMonth :db.type/long

                                                                   ;; The day the artist stopped actively recording
                                                                   :artist/endDay :db.type/long} ]

                                                 ;; The artists who contributed to the track
                                                 :track/artistCredit (ext {:db/fulltext true}
                                                                          :db.type/string)

                                                 ;; The position of the track relative to the other tracks on the medium
                                                 :track/position :db.type/long

                                                 ;; The track name
                                                 :track/name (ext {:db/fulltext true
                                                                   :db/index true}
